Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS537593 A
Publication typeGrant
Publication dateApr 16, 1895
Filing dateFeb 23, 1894
Publication numberUS 537593 A, US 537593A, US-A-537593, US537593 A, US537593A
InventorsAnd James P. Craighead
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 537593 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

(No Model.)


N0. 537,593. Patented'Apr. 16, 1895.



SPECIFICATION forming partof Letters Patent No. 537,593, dated April 16, 1895.

Application filed February 23, 1894. Serial No. 501,125. (No model.)

T0 on whom it may concern: I

Be it known that we, JOHN HJWOMERSLEY and JAMES P. CRAIGHEAD, residents of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Valves; and we do hereby declare the following to be a full, clear, and exact description thereof.

Our invention relates to valves, and more particularly to valves for shutting off the water supply in buildings.

The object of our invention is to provide a simple form of valve which may be operated at a point distantfrom its location by means of an electric connection, so that by pressing an electric button at any part of the building the valve, which is usually located in the cellar of the building, may be opened or closed as desired.

Our invention comprises certain details of construction, all of which will be fully hereinatter set forth and claimed. 7

To enable others skilled in the art to make and use our invention, we will describe the same more fully, referring to the accompanying drawings, in which- Figure- 1 is a vertical section thereof showing the valve open. Fig. 2 is a like view showing the valve closed.

Like letters indicate like parts in each of the figures.

The shell or casing is composed of the central section a to which are secured by watertight joints the end sections 0.. These end sections a form the piston chambers 01? a and are separated from the central section a by the walls b. The piston chambers a a communicate with the valve chamber a by means of the passages 11 b in the walls b. These passages b b are controlled by the puppet valves 11 b which fit in the seats b and which have the stems b passing up through openings 6 in the end sections a. Within the piston chambers a a are the pistons c 0' connected by the piston rod 0 which passes through suitable stuffing'boxes c in the walls I). The said piston-chambers a a are pro vided with the outlets a and the air inlets a.

Secured to the piston rod 0 is the slide valve 01, said slide valve having the passage way (1' and the groove d When the valve is open said passage d will be in coincidence with the outlet e of the central section a, so that water entering the supply port e will pass up through said passage :1 to the outlet e, whence it passes to the different points of consumption. In order to assist in holding the slide valve 01 in position the springf is interposed between the lower face of said valve .and the bottom of the valve chamber a. The central section a is further provided with the escape port 9 leading to the waste pipe g.

Pivoted to the central section a are the levers h h, said levers being held normally in an elevated position by the springs k The outer ends h of said levers are composed of magnetizablematerial. Electro-magnets 2' e" are arranged at the outer ends of said levers in such position that when the current is turned on said electro'magnets will attract the ends ]Z3 of said levers h h and lower same.

In Fig. 1 the ports of our improved valve are in the positions occupied by them when the water is turned on. In this case the water entering the supply port e will till. the valve chamber a and hold the puppet valves 6 b in their seats b Besides the water will be free to pass up through the passage 61 to the outlet e, whence it may be carried by a system of pipes to different parts of the building. If it is desired, however, to shut ed the supply of water to the building it is simply necessary to touch a button at some point in the building, which, by the necessary connections, forms a circuit and causes the electro-magnet t to attract the end of the lever 72. As the lever his drawn down it comes in contact with the stem of the puppet valve b beneath said lever and acts to unseat said valve. The passage 1) is thus opened and the water is allowed to pass into the piston chamber a With the piston c in the position shown in Fig. 1, the water will force said piston to the position shown in Fig. 2. This will bring the slide valve 61 to the position shown in Fig. 2, thus shutting 0d the supply of water to the building and bringing the groove d to such position as to connect the outlet 6 with the escape port 9 leading to the waste pipe g. .In this way all the water in the pipes passes ofi throughsaid waste pipe.

If it is desired to turn on the water again water is again free to flow into the outlet 6.

The outlets (1 allow for the escape of the water from the piston chambers a a We do not confine the scope of our invention to its use as a water valve, as it may be employed for other fluids.

What we claim as oui'inventioti,ai1d desire to secure by Letters Patent, i's-- 1. The combination of a box of casingiiaving inlet and outlet ports, a valve-chamber, and piston=chambers at each end thereof, Walls separating said vaiv'e chamber from said piston chambers, said walls having passages connecting said chambers a s'iidewalve in said valve chamber, pistons connected to said slide v'alve, valves controlling said passages betweeii said valve cha-tn'ber and said pistdti= chambers, and electrically operated levers adapted to unseat said last name valves, substantially as set forth.

2. The co'mbitiatiod of a box or casing? liav ing inlet and outlet ports, a valve-charme and piston chambers at each eiid thereof, walls separating said valve chamber'frdih said piston chambers, said walls having passages otiiiectiiig said chambers a slide-valve in said valve-chamber, pistons connected to said slide-valve, puppet valves controlling said passages between said valvechamber and said piston-chambers, and an electrically operated lever in the path of said puppet-valves, substantially as set forth.

3. The combination of a box or casing having inlet and outlet ports, a valve chamber and piston-chambers at each end thereof, walls separating said valve chamber from said piston chambers, said walls having passages connecting said chambers a slide-valve in said valve-chamber, pistons connected to said slide-valve, puppet valves controlling said passages between said valve-chamber and said pistomciianibers, levers; pivoted. to said bbbi or easing iii line with said puppet valves, spriiigsfor lioltlii'ig said levers in position, aha metre-magnets adapted to lower said leveis, substantially as set forth;

In testimony whereof we, the said JOHN H. WOMERSLEY and JAMES P. CRAIGHEAD, have hereunto set our hands; I


R'oBfiLDr TOTT'EN, J. N; Coo'KEi

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3949776 *Jul 25, 1974Apr 13, 1976Stal-Laval Turbin AbDisk valve
US4138089 *Aug 9, 1977Feb 6, 1979The United States Of America As Represented By The Secretary Of The Department Of Health, Education And WelfareSlide valve
US7140391 *Jun 21, 2004Nov 28, 2006Bsh Bosch Und Siemens Hausgeraete GmbhMultiway valve
Cooperative ClassificationF16K31/402